Abstract:
:Complex I (NADH:ubiquinone oxidoreductase) is the first and largest protein complex of the oxidative phosphorylation. Crystal structures have elucidated the positions of most subunits of bacterial evolutionary origin in the complex, but the positions of the eukaryotic subunits are unknown. Based on the analysis of sequence conservation we propose intra-molecular disulfide bridges and the inter-membrane space localization of three Cx(9)C-containing subunits in human: NDUFS5, NDUFB7 and NDUFA8. We experimentally confirm the localization of the latter two, while our data are consistent with disulfide bridges in NDUFA8. We propose these subunits stabilize the membrane domain of complex I.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Szklarczyk R,Wanschers BF,Nabuurs SB,Nouws J,Nijtmans LG,Huynen MAdoi
10.1016/j.febslet.2011.01.046subject
Has Abstractpub_date
2011-03-09 00:00:00pages
737-43issue
5eissn
0014-5793issn
1873-3468pii
S0014-5793(11)00088-3journal_volume
585pub_type
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